LC74794 View Datasheet(PDF) - SANYO -> Panasonic

Part Name

Description

Manufacturer

LC74794

On-Screen Display Controller LSI

SANYO -> Panasonic 

Ordering number : EN*5557

CMOS LSI

LC74794, 74794M

On-Screen Display Controller LSI

Preliminary

Overview

The LC74794 and LC74794M are CMOS LSIs for on-

screen display, a function that displays characters and

patterns on a TV screen under microprocessor control.

They feature a built-in PDC/VPS/UDT interface circuit.

These LSIs support 12 × 18 dot characters and can display

12 lines by 24 characters of text.

Features

• Display format: 24 characters by 12 rows (Up to 288

characters)

• Character format: 12 (horizontal) × 18 (vertical) dots

• Character sizes: Three sizes each in the horizontal and

vertical directions

• Characters in font: 128

• Initial display positions: 64 horizontal positions and 64

vertical positions

• Blinking: Specifiable in character units

• Blinking types: Two periods supported: 1.0 second and

0.5 second

• Blanking: Over the whole font (12 × 18 dots)

• Background color

— Background coloring: 8 colors (internal synchronization

mode): 4fsc

— Background coloring: 6 colors (internal synchronization

mode): 2fsc

— Blue background only: NTSC

• Line background color

— Can be set for 3 lines

— Line background coloring: 8 colors (internal synchro-

nization mode): 4fsc

— Line background coloring: 6 colors (internal synchro-

nization mode): 2fsc

• External control input: 8-bit serial input format

• On-chip sync separator and AFC circuits

• PDC/VPS/UDT interface circuit

• Composite video output in the PAL or NTSC format

Package Dimensions

unit: mm

3196-DIP30SD

[LC74794]

unit: mm

3216A-MFP30S

[LC74794M]

SANYO: DIP30SD

SANYO: MFP30S

SANYO Electric Co.,Ltd. Semiconductor Bussiness Headquarters

TOKYO OFFICE Tokyo Bldg., 1-10, 1 Chome, Ueno, Taito-ku, TOKYO, 110 JAPAN

22897HA (OT)/No. 5557-1/30

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